Posted by Wayne Parham on December 03, 2003 at 18:08:35

In Reply to: help: pi alignmemt for JBL E155 (box & port) posted by xsheya@yahoo.com on December 03, 2003 at 08:53:31:

PiAlign recommends a 3.0ft³ cabinet tuned to 56Hz using a port that's 5.25" x 9.375" and 7.25" long. Performance is very good using this cabinet. I wouldn't recommend tuning at 30Hz unless the cabinet were made much larger - around 8ft³ - in which case you will have generated an EBS alignment. Trouble is that this will reduce output below 100Hz -6dB.

The PiAligned 3ft³ 56Hz cabinet provides flat response with f3 of 60Hz. The 8ft³ 30Hz EBS alignment is -6dB down below 100Hz, but stays at this level down to 30Hz and the shelf is flat. Both are pretty good solutions, depending on your application.

• Re: help: pi alignmemt for JBL E155 (box & port) - xsheya@yahoo.com 08:01:55 12/04/03 (2)
  • Re: help: pi alignmemt for JBL E155 (box & port) - Wayne Parham 17:15:24 12/04/03 (1)
    • Re: Thanks Wayne!! - xsheya@yahoo.com 07:32:08 12/05/03 (0)